The following is a very preliminary listing of the times of sprites imaged at the Yucca Ridge Field Station. These are based solely on real-time visual inspection of the video monitoring system. There are most likely some additional sprites not listed and not all those below may in fact be sprites. All times are UTC.
A hailstorm developed after dark over Boulder and moved eastward. The system was slowly weakening but did have many positives at the time of observations. The cell was only about 6000-8000 km2. We looked both below the storm and above (at 58 degree elevation, f/2.0, f=12.5mm). During the one hour time there was one very small sprite (a 2 column c-sprite) that appeared at the same time as a bright flash below. It was at 55deg elev and 136 deg azimuth. There may have been other sprites since the storm was so close we couldn't image the entire volume above the storm. But it is unlikely that there was major sprite activity. The storm was weakening at the time we concluded our test observations at 0500 UTC.
Time to nearest second, tenths or hundreds of a second
(S) = sprite (E) = Elve (J) = Blue Jet (CF) = cloud flash (M)=Meteor
JD 97177 26JUN97 0400 Start obs 0501 End obs
0411.30 [S-]
0448.xx [M]
0453.xx [Satellite]
The following is a very preliminary listing of the times of sprites imaged at the Yucca Ridge Field Station. These are based solely on real-time visual inspection of the video monitoring system. There are most likely some additional sprites not listed and not all those below may in fact be sprites. All times are UTC.
Three MCS systems were present at sunset and continued beyond 0730 UTC. The largest was in southeast KS but mas largely obscured by an intervening cell. There as a third MCS in NE moving slowly southeast. This had many flashes, but was not seen to make a sprite. The sprites that did occur seemed to be largely from the small eastern CO-western KS system, which barely reached 15,000 km2 status. In fact a burst of bright sprites between 0600 and 0700 UTC seem to have occurred as the MCS was rapidly weakening.
Time to nearest second, tenths or hundreds of a second
(S)= sprite (E)= Elve (J)= Blue Jet (CF)= cloud flash (M)= Meteor *=Blue
JD 97190 09JUL97 0330 Start obs 0734 End obs
0426.30 [S-]
0512.xx [S0]
0515.3X [S]
0516.36 [S-]
0517.37 [S]
0529.04 [S?E?]
0538.00 [S-]
0616.0X [S-]
0624.40 [S]
0626.20 [S-]
0627.40 [S]
0630.30 [S-]
0632.2X [S+]
0642.10 [S]
0649.30 [S+]
0652.01 [S]
0653.10 [S]
0657.41.526[S+]*
0700.50 [S]
0703.00 [S-]
0707.XX [S?]
0722.2X [M]
0723.3X [CF]
The following is a very preliminary listing of the times of sprites imaged at the Yucca Ridge Field Station. These are based solely on real-time visual inspection of the video monitoring system. There are most likely some additional sprites not listed and not all those below may in fact be sprites. All times are UTC.
A major MCS was moving eastward through ND but was too far away and blocked by a smaller system in western NE. The Nebraska system was monitored. Initially it was quite small, and in fact appeared to be a supercell type storm with over 70% positive CGs. As the night wore on it gradually enlarged into a complex MCS but probably never got larger than 15,000 km2. Considerable sprite activity occurred between 0414 an 0700 UTC, after which the TLEs stopped. Many of the sprites came while the storm was changing characteristics. The lightning rate was slowly increasing (though it was never high, <1000/hour) but the +CG rate dropped from 70+% to 6% during the sprite periods. Two red and a blue camera were used, along with the blue and MIT PMTs. The sprites do not appear to have registered in the blue LLTV system.
Time to nearest second, tenths or hundreds of a second
(S)= sprite (E)= Elve (J)= Blue Jet (CF)= cloud flash (M)= Meteor *= Blue
JD 97192 11JUL97 0411 Start obs 0810 End obs
0411.00 [S-]
0421.xx[S-]
several occurred but
times not avail yet
0437.4x[E?]
0440.4X[S]
0447.4X[S-]
0504.23[S-]
0515.5X[S]
0521.38[CF?]
0526.05[S+]
0526.07[S+]
0528.20[M]
0528.22[S+]
0530.38[S+]
0531.45{S]
0533.33[S]
0537.24[S]
0539.37[S]
0539.55[E]
0540.55[S]
0542.55[S+]
0545.50[S-}
0548.48[S+]
0551.22[S]
0554.10[S-]
0555.35[S-]
0557.45[S-]
0600.38[S]
0602.04[S-]
0605.10[S-]
0606.25[S-]
0609.21[S]
0614.12[S-]
0618.37[S-]
0633.20[S-]
0645.05[S]
0648.05[S-]
0655.55[E]
0703.28[E?]
The following is a very preliminary listing of the times of sprites imaged at the Yucca Ridge Field Station. These are based solely on real-time visual inspection of the video monitoring system. There are most likely some additional sprites not listed and not all those below may in fact be sprites. All times are UTC.
Very large MCS developed in northern plains. It stretched from NE into ND. It was moderate electrically active (3000 fl/hr) but the positive rate was in the 5-10% range most of time. Dense cirrostratus covered the Front Range area all afternoon and into the evening, but clearing began by 0400 UTC. Clouds were thin enough that sprites could be seen after 0500 UTC. There were sprites, and one or two possible elves, but the rate was surprisingly low for such a large storm. We were looking at the southern (closest) segment which had the most lightning and best view ability. Tapes running 0519 to 0731 UTC.
Time to nearest second, tenths or hundreds of a second
(S)= sprite (E)= Elve (J)= Blue Jet (CF)= cloud flash (M)= Meteor *= Blue
JD 97193 12JUL97 0519 Start obs 0731 End obs
0520.xx [S-]
0537.05[S-]
0540.19[S+]
0552.43[E]
0606.00[M]
0624.35[S-]
0627.15[S+]
0633.5x[E?]
0650.36[S+]
The following is a very preliminary listing of the times of sprites imaged at the Yucca Ridge Field Station. These are based solely on real-time visual inspection of the video monitoring system. There are most likely some additional sprites not listed and not all those below may in fact be sprites. All times are UTC.
An MCS developed east of YRFS and moved very slowly through western and central Nebraska during the evening. A cold front passed through, causing 40-50 mph winds and numerous patches of low clouds. Small thundershowers also formed about 75 km northeast of YRFS during after 0600. These were in the field of view with the MCS. Over 50 sprites were imaged, but most were seen through clouds. We saw little evidence of sprites in the blue imagery. Numerous blue PMT traces of ICs and CGs were taken.
Time to nearest second, tenths or hundreds of a second
(S)= sprite (E)= Elve (J)= Blue Jet (CF)= cloud flash (M)= Meteor *= Blue
JD 97194 13JUL97 0338 Start obs 0830 End obs
0337.10[S+]
0341.4X [S?]
0344.15[S]
0347.09[S-?]
0348.00[S-?]
0358.55[S-]
0405.38[S+]
0409.10[S-]
0412.56[S]
0414.13[S]
0418.15[S]
0420.30[S]
0421.22[S]
0426.03[S-]
0428.52[S-]
0433.10[S-]
0436.15[S]
0436.16[S]
0442.30[S-]
0453.43[S-]
0505.18[S]
0510.37[S-]
0518.04[S+]
0522.47[S-]
0547.56[S-]
0551.13[S+]
0552.20[S-]
0554.46[S+]
0555.09[S]
0557.40[S-]
0558.10[S]
0601.10[S-]
0602.45[S]
0606.3X[S]
0610.54[S-]
0614.4X[E]
0626.50[S+]
0632.3X[S+]
0637.55[S+]
0643.57[S+]
0647.50[S-]
0700.42[S]
0713.10[S]
0724.34[S]
0727.28[S]
0729.5X[S-]
0733.55[E]
0750.4X[S-]
0758.25[S.M]
0758.4X[S-]
0801.04[S-]
0809.41[S+]
0810.25[S]
0814.18[S-]
0819.34[S]
0825.15[S]
The following is a very preliminary listing of the times of sprites imaged at the Yucca Ridge Field Station. These are based solely on real-time visual inspection of the video monitoring system. There are most likely some additional sprites not listed and not all those below may in fact be sprites. All times are UTC.
An elongated MCS, but not exactly a squall line, was present at sunset in
southwest Kansas. It produced one sprite at 0350 UTC - and then nothing for
two hours, even though the system was growing in size and flash rate. Curiously
the system began generating occasional sprites as it was shrinking and the
overall flash rate was dropping (although the percentage of +CGs was increasing).
The last one at 0731 was quite bright. One camera ran until 0800. It possible
that a few sprites may have occurred after that time. The storm moved
very slowly southeastward.
0350.34[S]
The following is a very preliminary listing of the times of sprites
imaged at the Yucca Ridge Field Station. These are based solely on
real-time visual inspection of the video monitoring system. There are
most likely some additional sprites not listed and not all those below
may in fact be sprites. All times are UTC.
Storms in South Dakota had distinct bow echo pattern, and many positives.
Viewing made difficult by full moon, scattered low clouds and haze due
to unusual humidity. Tom had to solo. PSU and TU believe they got very
good data. A number of dancers and C-sprites.
Note: The following are only a small sample of approximately 40-50 events
as the LLTV displays were not continuously monitored.
Time to nearest second, tenths or hundreds of a second
0329.xx[S]
The following is a very preliminary listing of the times of sprites
imaged at the Yucca Ridge Field Station. These are based solely on
real-time visual inspection of the video monitoring system. There
are most likely some additional sprites not listed and not all those
below may in fact be sprites. All times are UTC.
Watched storms in KS and in WY/SD. Neither made sprites until north
storm finally started at 0642, when cameras were dedicated to it. It
was a lewp type echo system with large trailing stratiform. Later the
MCS split with nice bi-polar pattern. Ran 2 tapes on each red camera.
No blue camera deployed. Start taping around 0645 with first sprite,
ending 1015. Before 0645 neither north or south storm appeared.
Note: The following may be an under count of events as the LLTV
displays were not continuously monitored.
JD 97202 21JUL97 0300 Start obs 0645 Start Tapes 1015 End obs
0642.44[S]
The following is a very preliminary listing of the times of sprites
imaged at the Yucca Ridge Field Station. These are based solely on
real-time visual inspection of the video monitoring system. There
are most likely some additional sprites not listed and not all those
below may in fact be sprites. All times are UTC.
Monsoon moisture back. Cells form along Front Range and move NE at dark.
For a while it seemed theymight grow upscale into an MCS. But middle
layer cloud extended all the way back to Mexico, so nothing could be
viewed. Everyone goes home art 0400. Then at 0500 the skies clear
(for reasons unknown). Cell now in NE shows signs of life. We set up B
camera and saw nice CGs and after 0600 caught 4 sprites through the cloud
cover. We did put out the MIT PMT with the 10 degree tube (no filter).
Could occasionally see some channels and bright CFs. Have several samples
during sprites. Clouds came back as storm waned. We looked over larger storm
in SD but could see nothing-probably clouds blocked view. So only one cam
and white PMT viewed events. Quarter moon illuminating clouds at end of tape.
Time to nearest second, tenths or hundreds of a second
0628.19.397[S-]
The following is a final listing of the times of sprites imaged
at the Yucca Ridge Field Station. These are based solely on real-time
visual inspection of the video monitoring system. There may be some
additional sprites not listed and not all those below may in fact
be sprites. All times are UTC.
Major rain storm activity along the Front Range Plains all day. However
after dark cells in Wyoming slowly moved east into western Nebraska. Skies
cleared enough to see over storms. Got 4 sprites-but no sure if there were
some earlier that were blocked by clouds. Very nice C sprites. The cell in
northern NE may have been blocked by clouds, but the north-south line was
clearly visible. With ranges from 125-250 km we took many PMT shots. The
system was initially all negative. As it began to die and +CGs developed,
the sprites started. Again an EOSO effect. Storm close to criteria size.
Several good meteors on tape.
Time to nearest second, tenths or hundreds of a second
0757.41.186[S-]*
The following is a listing of the times of sprites imaged
at the Yucca Ridge Field Station. These are based primarily on
real-time visual inspection of the video monitoring system. There
may be some additional sprites not listed and not all those below
may in fact be sprites. All times are UTC.
A complex MCS developed in Nebraska as dark fell. The low clouds
cleared enough to allow visual work, though many of the sprites were
seen through thin alto layers much of the time. The sprites were long in
starting. Again it seemed that as the storm began its decaying phase, that
was the cue for the sprites to start. The sprites occurred mostly from
the northern portion of the complex. Size criteria were met. PSU, TU
were operating at full capacity. No moon interference. Several good
meteors on tape.
Time to nearest second, tenths or hundreds of a secon
0334.12.777[E?]
The following is a preliminary listing of the times of sprites
imaged at the Yucca Ridge Field Station. These are based primarily
on real-time visual inspection of the video monitoring system.
There may be some additional sprites not listed and not all those
below may in fact be sprites. All times are UTC.
A band of thunderstorms along a weak cold front stretched from SE
Nebraska to northern New Mexico at sunset, along with a few small storms
over the Front Range in central Colorado. Their clouds blocked the view
of the major system for a while. They also produced no sprites. As the cloud
cover thinned, we began seeing sprites in central Kansas. The action was
with the largest of the clusters from the gradually weakening convection.
As in past nights, the sprites did not start until the system appeared to be
waning. This cell, however, continued to produce sprites to the very end.
While the radar echo stayed fairly large, the CGs gradually became less and
less, and the percent positive rose. Sprites continued for more than an hour
after the CG rate was so low as to seem to preclude sprites. Almost all the
CGs were positive and almost all made sprites. It seems these few flashes were
able to draw in all the charge left in the still-large storm cloud system.
All systems working very well. Very good data obtained. Best night of the year
so far. Several very good meteors on tape.
Time to nearest second, tenths or hundreds of a second
0434.09[S-]
The following is a preliminary listing of the times of sprites
imaged at the Yucca Ridge Field Station. These are based primarily
on real-time visual inspection of the video monitoring system. There
may be some additional sprites not listed and not all those below
may in fact be sprites. All times are UTC.
Two clusters of storms at dusk. To the northeast were a near-field
supercell with many ICs and some CGs, blocking the view of a larger MCS
further northeast in NE. In Kansas a large MCS was present, but it's view
was restricted first by some thin cirrus and then by thin smoke from western
fires. Shot many ICs and CGs on near storm (03-05 UTC). We also had two
clusters of elves and sprites dimly visible from the Kansas storm (which
weakened and then regenerated). Many very good meteors on tape.
Time to nearest second, tenths or hundreds of a second
0305.xx[S?]
The following is a very preliminary listing of the times of sprites
imaged at the Yucca Ridge Field Station. These are based solely on
real-time visual inspection of the video monitoring system. There
are probably some additional sprites not listed and not all those
below may in fact be sprites. All times are UTC.
Severe weather east along the Front Range during the night. Long NE-SW
squall line forms into huge MCS stretching from northeast Colorado into
Minnesota. Have several sprite centers including some rather close in
to east. Could see many of them visually. LANL working with red and blue LLTVs.
Time to nearest second, tenths or hundreds of a second
0314.52 [S]
The following is a preliminary listing of the times of sprites
imaged at the Yucca Ridge Field Station. These are based primarily
on real-time visual inspection of the video monitoring system.
There may be some additional sprites not listed and not all those
below may in fact be sprites. All times are UTC.
Large MCS in southeast Colorado at dusk initially obscured by low clouds.
Clouds began to thin after 0400 and video began 0440. System became
elongated north-south while moving east-southeast. Numerous +CGs in anvil
at northern end. Had some sprites early on along with some very pronounced
elves. As system grew, the sprite rate trailed off to very low values. By
0700 a very large bow echo with many CGs and high percent positive was
present and moving into the panhandle, but the sprite rate remained low.
It was very similar to 24July96. It started to pick up after 0800 UTC
(possibly as a bright band became evident in the stratiform region) but low
fog and humidity made them just too hard to see from YRFS with elevations
below 3 degrees. NMT did see many from this system after 0800 as they had
better viewing conditions. MANY MAJOR METEORS (Perseids).
Time to nearest second, tenths or hundreds of a second
0447.25[S?]
The following is a preliminary listing of the times of sprites
imaged at the Yucca Ridge Field Station. These are based primarily
on real-time visual inspection of the video monitoring system.
There may be some additional sprites not listed and not all those
below may in fact be sprites. All times UTC.
More upslope weather. Storms all over Front Range. Finally began to
get partial clearing after dark. Three storms in FOV to southeast. The
closest one gradually dissipated after 0600 UTC. There was a massive
squall line in eastern KS, but its view was blocked by a smaller cell in
western KS. This is the one we monitored. NMT could also see it, at 800 km
or so range. The low clouds cleared long enough for YRFS to see some
sprites between 0629 and 0730 - after which time the low clouds reformed
and blocked the view. NMT kept their LLTV going and saw sprites passed
0900 UTC. We heard many of the sprites NMT confirmed visually.
PSU monitored in ELF, VLF and VHF.
Time to nearest second, tenths or hundreds of a second
0629.00[S]
The following is a preliminary listing of the times of sprites
imaged at the Yucca Ridge Field Station. These are based primarily
on real-time visual inspection of the video monitoring system. There
may be some additional sprites not listed and not all those below may
in fact be sprites. All times UTC.
Storms develop in Wyoming and drift into SD-NE border region. Also very
large MCS in KS-OK. NMT does LLTV observations of southern system while
YRFS concentrates on northern one. After 0600 UTC, YRFS also look to KS-OK
and saw little sprite activity even though system was very large and had
numerous +CGs. Full moon extremely bright. Sky very light. Northern system
was relatively small (15,000 km2) and at times had quite a few +CGs. Sprites
active from 0400 to 0500 UTC, after which the activity suddenly ceased.
Obtained PMT measurements.
Time to nearest second, tenths or hundreds of a second
0320.50[S-}
The following is a checked listing of the times of sprites
imaged at the Yucca Ridge Field Station. These are based
primarily on visual inspection of the video tapes. While it
is possible that some sprites and elves may have been overlooked,
this is likely to be a nearly complete listing. All times UTC.
The time refers to the end time of the first 17 ms field in
which a sprite or elve occurs.
An intense tornadic squall line stretched from ND to NM. It was
triggered by an advancing cold front. Five tornado watches were in
effect at one time or another. There were numerous reported touch
downs in Colorado. The cells moved northeast along the line which
advanced eastward slowly. A break in the clouds allowed imaging sprites
from 0325 to 0500 UTC. The storms to the east had impressive spider
lightning displays. The LANL blue camera was used and several good blue
sprites were obtained. Samples of the UM photometer (red filter) and the
Inspire VLF were obtained. Snow began at Yucca Ridge before dawn.
Time refers to end of 17 ms field first containing an event.
0325.55.795[S-}
NOTE: The following may be an under count of events as the LLTV displays were
not continuously monitored.
JD 97197 16JUL97 0308 Start obs 0800 End obs
0545.50{S?}
0609.23{S)
0613.06(S)
0615.03(S)
0621.37(S)
0629.50(S)
0634.01(S)
0653.02(E)
0703.50(CF)
0706.11(S)
0707.56(S)
0720.34(S)
0725.16(S)
0731.41(S+)
SPRITES'97 PRELIMINARY SPRITE LOG
JD 97200
19 JULY 1997
(S)= sprite (E)= Elve (J)= Blue Jet (CF)= cloud flash (M)= Meteor *= Blue
JD 97200 19JUL97 0329 Start obs 0338 Start Tapes 0704 End obs
0340.53[S]
0342.00[S]
0348.12[S]
0352.49[S,E]
0353.01[S]
0354.35.943[S+]
0402.17[S+]
0412.00[S]
0413.32[E]
0413.33[E]
SPRITES'97 PRELIMINARY SPRITE LOG
JD 97202
21 JULY 1997
Time to nearest second, tenths or hundreds of a secondbr>
(S)= sprite (E)= Elve (J)= Blue Jet (CF)= cloud flash (M)= Meteor *= Blue
0701.03 [S]
0723.XX[S?]
0723.43[S]
0724.44[S,E]
0733.07[S]
0735.46[S]
0740.49[S]
0744.50[S]
0749.09[S]
0751.57[S]
0811.12.391[S+]
0820.06.894[E]
0820.15[S]
0822.54[S]
0826.57[S]
0831.44[S]
0839.45 [S]
0841.32[S.E]
0847.10[S]
0847.17[S]
0848.26[S]
0848.44[S]
0851.29[S]
0856.52[S]
0901.XX[S]
0904.XX[S]
0907.04[S]
0912.11[S]
0916.35 [S]
0923.31[S]
0931.47[S]
0955.54[S]
SPRITES'97 PRELIMINARY SPRITE LOG
JD 97208
27 JULY 1997
(S)= sprite (E)= Elve (J)= Blue Jet (CF)= cloud flash (M)= Meteor *= Blue
JD 97208 27JUL97 0510 Start Tapes 0714 End obs
0642.20.722[S-]
0646.28.487[S-]
0658.58.840[S]
SPRITES'97 PRELIMINARY SPRITE LOG
JD 97212
31 JULY 1997
(S)= sprite (E)= Elve (J)= Blue Jet (CF)= cloud flash (M)= Meteor *= Blue
JD 97212 31JUL97 0406 Start obs 0902 End obs
0811.06.882[S-]
0822.57.795[S]*
0837.44.517{S}
SPRITES'97 PRELIMINARY SPRITE LOG
JD 97213
01 AUGUST 1997
(S)= sprite (E)= Elve (J)= Blue Jet (CF)= cloud flash (M)= Meteor *= Blue
JD 97213 01AUG97 0301 Start obs 0704 End obs
0400.23.737[S+]
0412.12.715[S]
0421.32 [S?]
0434.40[E?]
0448.51.871[S-]
0504.50.663[E,S]
0517.36.294[S-]
0521.40.956[S+]
0527.13.020[S-]
0527.13.421[S-]
0534.30.473[S]
0538.07.674[S]
0538.08.123[S]
0542.39.679[S-]
0549.03.729[S+]*
0557.06.260[S-]
0603.39.252[S+]*
0613.46.509[S]
0620.21.503[S]
0626.01.142[S+]
0631.25.633[S+]
SPRITES'97 PRELIMINARY SPRITE LOG
JD 97214
02 AUGUST 1997
(S)= sprite (E)= Elve (J)= Blue Jet (CF)= cloud flash (M)= Meteor *= Blue
JD 97214 02AUG97 0305 Start obs 0904 End obs
0509.22[S]
0534.10[E?]
0539.50[E?]
0551.18[S-]
0554.33[CF]
0556.35[E?]
0557.00[CF]
0600.12[S+]
0610.24[S-]
0617.32[S-]
0628.50[S+]
0632.26[S-]
0633.14[E]
0638.11[E?]
0642.53.940[S+]*
0648.21.033[S+]
0655.08.473[S]
0703.21.649[S+]
0708.20[S-]
0717.30[S+]
0723.40[S]
0739.35[S+]
9747.00[S]
0753.20[S]
0756.54.539[S-]
0757.57.532[S-]
0803.03[M]
0803.09.646[S+]
0809.12.875[S]
0810.40[M]
0811.55[S-}
0814.30[S]
0817.22[S]
0832.20[S]
SPRITES'97 PRELIMINARY SPRITE LOG
JD 97215
03 AUGUST 1997
(S)= sprite (E)= Elve (J)= Blue Jet (CF)= cloud flash (M)= Meteor *= Blue
JD 97215 03AUG97 0255 Start obs 0904 End obs
0325.40[S]
0332.50[S-]
0336.38[S-]
0324.39[S-]
065X.XX[S-]
0655.XX[S-]
0721.34[E]
0725.00[E]
0728.00[E]
0741.09[S-]
0744.46[S-]
0745.30[S-]
0746.30[M]
0748.53[E]
0754.08[S-]
0802.18[S-]
0810.00[E]
0817.05[S?]
0819.30[S-]
0824.41[S-]
0829.45[S]
0833.20[M]
0835.01[S-]
SPRITES'96 PRELIMINARY SPRITE LOG
JD 96218
05 AUGUST 1997
(S)= sprite (E)= Elve (J)= Blue Jet (CF)= cloud flash (M)= Meteor *= Blue
JD 96218 05AUG 1997 0250 Start obs 0630 End obs
0329.46 [S]
0333.21 [S]
0334.53 [S+]
0338.27 [S]
0338.48 [S]
0340.51 [S]
0342.40 [S+]
0344.31 [S]
0344.33 [S]
0345.50 [E]
0346.51 [S]
0346.51 [S]
0347.45 [S]
0344.35 [S]
0350.17 [S]
0351.33 [S]
0351.40 [S+]
0352.13 [S]
0352.31 [S]
0353.38 [S]
0353.50 [S]
0354.59 [S]
0356.10 [S]
0357.35 [S]
0357.50 [S]
0358.49 [S]
0359.00 [S]
0400.55 [S]
0401.15 [S]
0402.43 [S]
0403.27 [S]
0404.30 [S]
0405.35 [S]
0405.41 [S]
0406.49 [S]
0408.55 [S]
0408.59 [S]
0412.32 [S]
0414.15 [S]
0416.38 [S]
0418.52 [S+]
0420.46 [S]
0421.50 [S]
0425.12 [S]
0426.49 [S]
0427.46 [S]
0431.28 [S]
0431.29 [S+]
0434.49 [S+]
0444.00 [S]
0448.22 [E]
0454.40 [S]
0459.38 [S]
0506.06 [S]
0510.58 [E]
0511.14 [S]
0515.18 [E]
0519.33 [S]
0520.19 [S]
0527.53 [E]
0528.56 [E]
0533.01 [S+]
0534.47 [S]
0536.12 [S]
0538.11 [S]
0539.21 [E]
0547.15 [S]
0548.26 [S]
0549.03 [S]
0552.45 [S]
0555.06 [S]
0557.16 [E]
0557.19 [S]
0558.06 [S]
0602.38 [S]
0616.16 [S]
0620.20 [S]
0623.43 [S]
SPRITES'97 PRELIMINARY SPRITE LOG
JD 97224
12 AUGUST 1997
(S)= sprite (E)= Elve (J)= Blue Jet (CF)= cloud flash (M)= Meteor *= Blue
JD 97224 12AUG97 0440 Start obs 0845 End obs
0450.29[S]
0451.50[M]
0455.40[M]
0458.55[E]
0502.00.685[S+]*
0509.10[E]
0510.28[S]
0513.15[S]
0516.35[E]
0517.10.009[E+]
0520.40[E?]
0521.45[S]
0522.30[S-]
0524.21[E?]
0526.40[S-]
0528.11[S-]
0530.20[S]
0531.50[E?]
0534.05[E?]
0537.18[S]
0540.22[S-]
0603.50[S-?]
0613.05[S?]
0614.10[E?]
0621.10[E?]
0640.05[S-]
0700.01[M]
0702.56[E]
0718.35[E?]
0729.23[S]
0744.55[E+]
0745.35[S+]
0756.49[S]
0807.35[S-?]
0811.09[E?]
0822.30[E?]
0835.27[S-]
0839.46[S]
SPRITES'97 PRELIMINARY SPRITE LOG
JD 97229
17 AUGUST 1997
(S)= sprite (E)= Elve (J)= Blue Jet (CF)= cloud flash (M)= Meteor *= Blue
JD 97229 17AUG97 0605 Start obs 0928 End obs
0632.22[S-]
0650.05.793[S]
0655.06.092[S]
0703.57[M]
0709.17[S]+
0715.31[S]
0717.20[S-]
0718.02[S-]
0720.23[S]+
0723.17[S]+
0724.54[S}+
0727.54[S]+
0729.27[S?]
0737.13[S-}+
0737.34[S?]
0737.35[S+]+
0738.47[S}+
0744.45[S]+
0755.25(E?]
0759.58[S]+
0803.40[S}+
0809.01[S+]+
0812.45[S]+
0823.22[S]+
0906.42[S?]+
0915.56[S]
+ NM Tech LLTV
SPRITES'97 PRELIMINARY SPRITE LOG
JD 97231
19 AUGUST 1997
(S)= sprite (E)= Elve (J)= Blue Jet (CF)= cloud flash (M)= Meteor *= Blue
JD 97230 19AUG97 0320 Start obs 0700 End obs
0405.32[S-]
0409.15[CF]
0412.20[S]
0429.46[S-]
0430.42[S]
0432.10[S-]
0435.40{S+]
0439.08[S+]
0445.00[S]
0451.38[S]
0451.40[S+]
0539.20[E?]
SPRITES'97 PRELIMINARY SPRITE LOG
JD 97285
12 OCTOBER 1997
(S)= sprite (E)= Elve (J)= Blue Jet (CF)= cloud flash (M)= Meteor *= Blue
JD 97285 12OCT97 0325 Start obs 0503 End obs
0328.25.121[S]
0334.49.020 [S+]
0336.47.405[S-]
0338.43.371[S-]
0343.17.511[S]
0349.15.117[S-]
0351.43.425[S]
0353.07.933[S+]
0354.38.838[S-]
0357.22.654[S-]
0400.30.500[E,S-]
0401.08.980[S+]
0403.41.165[S-]
0406.47.075[E]
0412.26.172[S+]
0419.27.282[S-]
0420.41.900[S+]
0421.45.185[E,S+]
0422.31.549[S+]
0424.42.962[S-]
0426.48.938[S]
0426.49.072[S]
0430.11.273[S+]
0434.16.834[S-]
0437.50.847[S+]
0440.09.097[S+]
0442.34.109[S-]
0447.11.955[S-]
0451.36.268[S]
0503.19.201[S-]